This is another nice pattern from 1889 Weldon’s Practical Needlework, Volume 2 that had no original image. The pattern has only 4 pattern rows! It starts with 13 stitches increasing to 16, then returns to 13 stitches on the 4th (last) row. This edging is best for a curved edge.
Skills needed: long-tail cast on, knit, purl, slip, k2tog, yarn over, yarn over twice, yarn over at the beginning of a row and bind off in knit stitch.

Gauge is not important in this pattern. Any block-able yarn/thread will work. Make a swatch to check size and appearance.

3 yards of #10 crochet cotton thread will make about 14 rows (1 inch) in the stated gauge.